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Exam1.2 Solution

# Exam1.2 Solution - Name_Student ID Score last first II[20...

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Name ___________________________________Student ID ____________ Score_______ last first Physics 121A, Winter 2007 Final Exam 12 March 2007 ME-UWA121A071T-EF(M2D)mc II. [20 Total Pts.] A goose starts from rest at point I and runs on a flat, horizontal surface along the path shown in the top-view diagram at right. The goose speeds up until a point between points II and III , and travels with constant speed thereafter. The top-view diagram at right shows the path of the goose. 11. [5 pts] Choose the vector that best indicates the direction of the instantaneous acceleration of the goose at point II . II A. B. C. D. E. It is zero. B. The path is curved, and the object is speeding up. So, the acceleration has both a tangential component pointing along the path and a radial component pointing inward on the curve. 12. [5 pts] Choose the vector that best indicates the direction of the instantaneous acceleration of the goose at point III . D.

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Exam1.2 Solution - Name_Student ID Score last first II[20...

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